curl --request POST \
  --url https://api.{your-broker}.slate-labs.com/transactions/transfer \
  --header 'Content-Type: application/json' \
  --data '
{
  "from_login": "<string>",
  "to_login": "<string>",
  "amount": 5000000,
  "note": "<string>"
}
'

{
  "transfer_out_id": "<string>",
  "transfer_in_id": "<string>",
  "from_login": "<string>",
  "to_login": "<string>",
  "amount": 123,
  "from_currency": "<string>",
  "to_currency": "<string>",
  "converted_amount": 123,
  "status": "<string>",
  "source": "<string>",
  "effective_rate": 123
}